This is an Report on Open Syringe Pump.

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A
Project Report
On
Fabrication of Open Syringe Pump
Made By: Guided By:
Mechaholic Prof.
Team Member:
Year:
2017 - 2018
Submitted to:
Department of Mechanical Engineering
University

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Acknowledgement
I take this opportunity to express my profound gratitude and deep regards to my guide Prof.
for his exemplary guidance, monitoring and constant encouragement throughout the course
of this thesis. The blessing, help and guidance given by him time to time shall carry me a long
way in the journey of life on which I am about to embark.
I also take this opportunity to express a deep sense of gratitude to my University for cordial
support & guidance to prepare the project and it always useful for me in the future.
I am obliged to staff members of workshop, for the valuable information provided by them in
their respective fields. I am grateful for their cooperation during the period of my project.
Lastly, I thank almighty, parents, friends and my project colleague for their constant
encouragement without which this project would not be possible.

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INDEX
1. INTRODUCTION ________________________________________________ 1
2. WHY WE HAVE SELECTED THIS PROJECT ____________________________ 2
3. DESIGN AND CALCULATION OF PROJECT ____________________________ 3
4. PARTS OF OPEN SYRINGE PUMP __________________________________ 4
5. WORKING _____________________________________________________ 5
6. ASSEMBLY ____________________________________________________ 6
7. HOW TO OPERATE : STEP BY STEP __________________________________ 7
8. PARTS AND OPERATION CARRIED OUT _______________________________ 8
9. APPLICATION ___________________________________________________ 9

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10.POSSIBILITIES OF IMPROVEMENT IN OUR PROJECT _____________________ 10
11.OUR EXPERIENCE DURING THE PROJECT _____________________________ 11
12.CONCLUSION ___________________________________________________ 12

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1. Introduction
 An open syringe pump is a small infusion pump (some include infuse and withdraw
capability), used to gradually administer small amounts of fluid (with or without
medication) to a patient or for use in chemical and biomedical research.
 A syringe pump pushes out small, accurate amounts of liquid. The application space is
huge, from medical applications to food engineering! They're also extremely useful in
biological research.
 Syringe pump are also useful for delivering IV medications over several minutes. In the
case of a medication which should be slowly pushed in over the course of several
minutes, this device saves staff time and reduces errors.

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2. Why we have selected this project?
 We wanted to do something different from others, this pump has been recently made
open source and it is sold at very high cost so this is a step to show that this component
can be made easily at low cost and help in research of small laboratory and hospital
which cannot afford it.
 As technology is advancing day by day it is making life easier and one of the rapid
growing sector is bioscience.
 This pump has wide application in Bio-Science and also for patients.

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3. Design and Calculation of Project
Diameter of Syringe (d) = 29 mm
Pitch of Lead Screw = 1.75 mm
Steps of stepper motor = 100 step/rev
1. Distance to supply 1ml fluid
1ml = 1cm3
= 1000 mm3
Length x Area = Volume
𝑙 =
1000∗4
𝜋∗(292)
L=1.5 mm.
2. Steps to move 1.5 mm
=
1.5∗100
1.75
= 85.71 Steps
85.71 Steps to supply 1 ml fluid
3. Flow rate (Q)
Speed of stepper motor = 30 rpm
Flow rate = Pitch x Speed x Area
Q = 1.75 ∗ 30 ∗
𝜋(29)2
4
= 34677.29 mm3
/sec
Flow rate is 34.67 ml/sec

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4. Part of Open Syringe Pump
Mechanical Part
Name Material Cost Dimension
Base Plywood Scrap 774mm*150mm
Lead Screw Borrowed 1.75mm Pitch, 420 mm
length
End Block Timber wood Scrap 114mm*15mm*64mm
Motor Stand (C-
Channel)
M.S Scrap 120mm*75mm
Sliding Block Timber wood Scrap 105mm*75mm
Sliding Rod Chrome plated S.S
Bar
100 Rs 280mm, 5mm diameter
Syringe & Tube Plastic 150 Rs 50 ml

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Electrical Part
Name Cost Specification
Stepper Motor 400 Rs 100 step,12 V,1 A
Control Unit 550 Rs
Arduino 1000 Rs Uno (atmega328p)
Adapter ( Power source) 300 Rs 12v, 1A

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5. Working
Open syringe pump works on simple principle it converts rotary motion of motor to
reciprocating motion of syringe piston.
As the control unit gives command to Arduino Uno, the Arduino Uno sends instruction to
stepper motor and the stepper motor rotate according to motion required based on
calculation we can find how much fluid will be drawn out and rotation of motor. After that
because of rotary motion of motor the lead screw rotates and nut attached to it pushes the
sliding block.
The Syringe piston is attached to sliding block and it gets push because of which fluid comes
out.
For Suction of fluid we can reverse the process of rotation.

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6. Assembly
 The Base Plate is the main component on which the End Block and Motor stand is
fastened by screw with the help of Drilling operation.
 The sliding rod is attach to End block at one and Motor Stand and lead screw with the
help of coupling and bearing.
 Sliding Block is mounted on sliding rod for smooth and easy movement bush is used.
 Syringe is mounted on end block attached, and syringe piston is attached to nut.
 Control unit and Arduino is kept beside Motor stand.

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7. How to Operate: Step by Step
1. Connect Arduino With Laptop via USB Port
2. Connect Adapter with Power Source ( 12 V Power Supply)
3. Press Power Button on Control Board
4. Press On Reset Button
5. Press amount of fluid required
Here the Control Unit has facility of summing up
Example: If 10ml button pressed 2 times the amount of fluid which will flow
10ml x 2 = 20 ml
6. Then Press OK Button

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8. Parts and Operation Carried Out
8.1 On Motor Stand
Use
 To Hold Stepper motor tightly on Base.
Raw Material
 C – Channel ( Mild Steel)
Operation
 Cutting
 Drilling
 Fastening

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8.2 End Block
Use
 To Hold Lead screw bearing
 To Hold Sliding Rod.
 To hold syringe.
Raw Material
 Timber Wood
 Bottle Cap
Operation
 Drilling
 Gluing
 Fastening
8.3 Sliding Block
Use
 To Push Syringe piston freely on sliding block

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Raw Material
 Timber Wood
 M.S Rod (Bush)
Operation
 Drilling (Timber Wood)
 Turning, Drilling, Reaming (Bush).

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8.4 Sliding rod
Use
 For Guiding Sliding Block
Raw Material
 Chrome Plated S.S Rod
 Operation
 Cutting (Shearing Machine)
 Filling
8.5 Plywood Base
Use
 For Holding and supporting all parts
Raw Material
 Plywood
Operation
 Cutting
 Drilling
 Fastening

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8.6 Microcontroller
8.7 Electronic circuit
Use
 To control all input and outputs
Operation
 Soldering

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8.8 Control Unit
Use
 To Receive command from operator
Operation
 Soldering
8.9 Syringe
Use
 To supply fluid
8.10 Check Valve
Use
 To allow fluid to flow in only one direction

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9. Advantages
 Works at pressures up to 3000 psi
 Highest precision < 0.1%
 Pulse free flow
 Accurately dispense very small to large
 Easily sterilizable
 Can dispense or withdraw
 Many easily programmable dispensing

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10. Application
 Chemical and Biomedical research
 Palliative care
 Microfluidic applications
 Pumping sample/ calibrate into Mass Spectrometer
 Accurate dispensing of drugs in animals
 High pressure flow into reaction chamber

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11. Possibility of improvement in Project
 We could have used high torque motor for easy pumping of viscous fluid.
 We have used Lead screw, Ball screw if used would give more accuracy in flow of fluid
 If syringe volume is increased the pump capacity would increase.
 If metal base is used it would be more robust and have good accuracy.

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12. Our Experience during the Project
 During working on project we got stuck for material for calculation and that helped
we understood the material and operation to be carried.
 We learn how to utilize scrap, our 70% of project is made from scrap (Minimum
Cost).
 We learned how to co-operate with people and inherit there knowledge.
 It helped us working in team and mutual understanding.
 Project making is the best opportunity for each and every student to increase
individual knowledge & skills.

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13. Conclusion
During the making of this project, we have learned the importance of the different
materials and their specific properties. We have understood the importance of planning
and distribution of work among team members and it developed and mutual
understanding between us.
We got a good expose of practical work for making An Open syringe pump and learned so
many things how to make it physically.
The project gave the knowledge of how to apply theoretical part in to the practical work or
in real life example. Also we were able to develop problem solving skills through
brainstorming or teamwork so to successfully complete our project.
And we got some idea about computer programming for Arduino circuit.
And in this growing world accuracy is given more value than precision and our project is
totally based on Accuracy.
We know that it would be very beneficial for our future life.

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14. Reference
Book
Mechanical Engineers Handbook
Website
www.hackaday.io (Project Competition Site)